To Derive a Demand Curve Using the Indifference Curve Model,you

Multiple Choice

To derive a demand curve using the indifference curve model,you must change the

A) consumer's preferences.
B) consumer's income.
C) price of one good, holding the price of the other good and income constant.
D) price of both goods simultaneously but by different amounts.
E) price of both goods simultaneously but by the same percentage.